212101221102211 has 8 divisors (see below), whose sum is σ = 242401498837344. Its totient is φ = 181800969190080.

The previous prime is 212101221102181. The next prime is 212101221102227. The reversal of 212101221102211 is 112201122101212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212101221102211 - 2¹³ = 212101221094019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212101221102271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16665561 + ... + 26494213.

It is an arithmetic number, because the mean of its divisors is an integer number (30300187354668).

Almost surely, 2^{212101221102211} is an apocalyptic number.

212101221102211 is a deficient number, since it is larger than the sum of its proper divisors (30300277735133).

212101221102211 is an equidigital number, since it uses as much as digits as its factorization.

212101221102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911501.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212101221102211 its reverse (112201122101212), we get a palindrome (324302343203423).

Subtracting from 212101221102211 its reverse (112201122101212), we obtain a palindrome (99900099000999).

The spelling of 212101221102211 in words is "two hundred twelve trillion, one hundred one billion, two hundred twenty-one million, one hundred two thousand, two hundred eleven".